Typewriting machine



Septf 27 192,7 A. G. F. KURowsKl v TYPEWRITING MACHINE Filed 001,. 1 5, 1925 xxx xx xxxx xxxx xxx if @Ja/w Patented Sept. 27, 1927.

Umm STATES gli?ATENr y, oFF/ICE.

ALE-RED G. E. KURoWsxIQoE ERooKEY'iSLNEW YORK, AssIGNoR To UNDERWooD TYEE- WRITER coi/IPANY,` oF NEwYoRmN. Y., ,A coRPoRA'iIoN or DELAWARE.

TYPEWRITING MACHINE. Y

Y Applicationled October 15, 1925. Serial No. 62,552.

This invention relates to stencil card holding and typing devices for typewriting machines, in which a card-holding frame is arranged to reciprocate tangentially to a revoluble platen. J

f Some addressing` machines are designed to use a card including a comparatively heavy paper or cardboard frame, having an opening across which is stretched a stencil sheet. Besides typing the addresses upon the stencil sheet with the bare type, it is sometimes desirable to type some information upon both sides of the paper frame withthe aid of the ribbon. y l

In my pendingV application, No'. 43,492, filed July 14, 1925, a device is shown in which, while adapted for automatically controlling the ribbon so that it will be vibrated when the frame of the card is in the printing field and silenced when thew stencil-sheet is in the printing field, to facilitate typing upon the stencil-card, no provision was made for handling cards upon which it was desired to type on both sides thereof.

' This invention is in the nature of an iinprovement ron said application.v and contemplates to enlarge the scope ofsaid device and to generallyl expedite the handling of the work.A Y

According tov certain features of this invention, the stencil-sheet is inserted in a card-holder tangentially disposed in front of the platen, and by rotating the platen theholder is lowered to a position-for receiving the ,first line of typingupon the paper. frame, atv the upper edge thereof. lVliilethe card is in vthis position, the ribbon is Av'ibrated at each key depression'an'd when the ,cord 'is elevatedto present the stencilsheet to the printing field, the ribbon is silenced. Upon linishing typing on'one side of the card, the same is withdrawn from the holder and is reversed rand turned upside down, and is again inserted in the holder to receive typing upon the back of the paper frame. y l

Since the device disclosed in said application includes means for controlling the ribbon-vibrating mechanism, and since said means are controlled'by the position of the card, it will be apparent that if the machine isset or timed to silence the ribbon when the lower portion of the card is in the printing fieldand'to -vibrate the ribbon when-the one edge ofthe celluloid.

card is lowered, then upon reversing and turning thev card upside down the machine will'be out of time, thatis to say, it will l vibrate thev ribbon in front of the stencil window, and will silence the ribbon when the frame of the card is ink the printing field. This, of course, Awould render the d evice inoperative. However, lin this invention, novel means are contrived whereby the card may beVV arrested while being insert-ed in the card-holder so that the lower portion of the card willv be presented totheprin'ting field substantially in the upperfportion of the holder, and thus, by a verysimple and inexpensive device, one of the objects of the invention is accomplished. v

One of the features of the invention relates, therefore, to means for controlling the position of the card in the card-holder. To this end, there are provided a pair Yof stop devices inthe card-holder resiliently held in .the path of the card so that the bottom edge of the Ycard-holder. '.Thi's, however, is only done when Yit is desired to type upon the front side rof 'the' card. l 'Y -Another' feature of this invention relates to-novel means for facilitatingtlie replacement of acelluloid covering vencircling a portion of the platen, said covering serving as a backing for the types when cutting. the stencil-sheet. According to this feature, there-is provided a clamping member extending the full width of the platenfwhich co-operates'with aslot in the platen to hold Y `The other edge ofthe Celluloid may be bent inwardly to engage with a secondslot in the platen, so that itmay be stretchedr between the two slots. The clamping member is held in effective position by means of a spring and is provided with affinger-piece for rendering the clamp ineffective.- l f Y l Otherfeatures and advantages will hereinafte'r'l appear. l `f l l .In the accompanying drawing, I p Y Figure lis a front view, in elevation, of an Underwood typewriting machine having There are also provided a pair of the invention applied thereto and shows the cardin its lowermost position.

Figure 2 is a similar view, showing the card inserted half way in the card-holder, the lower edge of the card being arrested by stop devices in the card-holder.

Figure 3 is a cross-sectionalview, in elevation, through the center of an Underwood typewriting machine and shows novel means forv holding a celluloidbacking around the platen of the machine.

Figure 4 is a cross-sectional view of the platen and shows the means for holding the Celluloid in its released position.

Figure 5 is a plan view of the platen.

Figure 6 is a cross-sectional view through line 6-6 of Figure 2. l

This invention is illustrated as applied to an Underwoody standard typewriting machine, and the invention is especially adapted for handling stencil-cards usedin some types of addressing machines. The stencil-cards usually comprise a heavyl paper frame 10 in which there is provided an opening 11 across which there is stretched a stencil-sheet 12.

The card is inserted in a card-holder 13 arranged to reciprocate tangentially to a platen 14 revolubly mounted upon a platen-frame. `The card is then lowered by rotating the platen in a counter-line-feeding direction by means of a handle 15, so that thevfirst line of typing may be printed upon the paper frame, at the upper edge thereof. The card is then line-spaced by means of a line-space handle 16, and other lines are typed upon the frame of the card.

In my said pending application, there is provided mechanism 'whereby the ribbon may be vibrated in certain typing zones of the card and silenced when the stencil-sheet is presented tothe printingeld. Said mechani sm is operated by a universal bar 17 which is vibrated by type-bars 18 at each key-de pression. Ther-e is also provided mechanism for controlling the ribbon-vibrator relatively to the position of the card-holding frame in front of the platen, which may include an actuating member 19 secured to the cardholding frame atthe lower edge thereof, which member engages with teeth 2O of a plate 21 rockably mounted upon a pivot 22 and actuates, by means of ay link y25 operatively connected thereto, the means whereby the ribbon is either connected to the universal bar or disconnected therefrom.

Since the ribbon is automatically vibrated when the card is lowered to present the frame thereof to the printing field, and is silenced when the stencilsheet is presented to the printing field, it follows that if the card is turned upside down in order` to type upon the back of the card frame, then the card will be out of time with the ribbon-vibrating mechanism, that is to say, the ribbon would be silenced when typing upon the frame, and

.pin-and-slot arrangement 27.

would conversely be rendered operative when typing upon the stencil-sheet.

` In order to eliminate this condition which would render the machine inoperative when typing upon the back of the card, there is provided novel mechanism for the' purpose o-f synchronizingy the operation vof the ribbon with the position ofthe card, sovthat-'the card 'will be positioned in the card-holder to suit the controlling mechanism of the ribbon. ToV

this end, there is provided a pair of stop devices 24 pivotally mounted on studs 25 secured to the card-holder, the stop devices being controlled byA handles 26 also pivotally mounted upon the holder and `operatively connected to the stop devices by means of a The cardholder comprises a back-plate 28 having racks l29 secured thereto, and is provided with an undercut 30 forming a recess lin which the card is lodged. In orderto hold the card in the recess, there is provided a pair of plates 31 secured to the holder in a mannerto provide guides for the edges of the card. Said plates may `also serve as means for preventing accidental displacement of the card and for positioning the stop devices 24 either in effective or' ineHective position.

thereof, and with spring clips 33, which may also form an integral part Vof said plates. It will be noted, by referring to Figures 2 and 6,*that the stop devices are mounted in a recess 34 1n the holder and are covered by the 'plates 31. In order to position the stop devices, the clips 33 are provided with dektents 35 engaging with either of two holes 86 in Vsaidstop devices. The handles 26 are pivotally mounted upon shoulder screws 37, 'of

truding through slots 40 in the plates 31,

which may be further secured to the holder by means of screws 4l.

lVhentyping upon the stencil-sheet with the baretype, it is customary to provide a backing` encircling the platen so as to protect both the platen and the types, and at the same time facilitate the cutting of the stencil. Novel means are provided in this invention to facilitate the removal of the backing when worn out, so' that a fresh one may be substituted therefor.

The backing may be in the form of a celluloid strip 42 extending substantially the full width of the platen and secured to the platen by means of a clamping member which also extends the full width of the platen. The edges of the Celluloid are bent inwardly and engage lwith slots 43 and 44 in the platen.A the latter being made large enough to `house the clamping member 45, "i

The plates are provided with finger-pieces 32, forming an integral part as shown in Figures 3 and 4, in which the clamping member is shown respectively in its closed and open positions. The platen is supported upon a platen-shaft 46 journaled in end plates 57 of the platen-frame, and is provided with a finger-piece 47 at the end thereof, the platen being secured to the shaft by means of end flanges 48 which carry lfast thereto pinions 49 designed to engage the lracks 29 on the card-holder.v The clamping member may be constructed in the `form of a bail-piece having side ears 50 and holes 5l therein co-operating Ywith turned-down ends of studs 52 screwed intol the flanges 48. The clamping member ispivotally mounted on said studs 52 and is held in'its effective position by means of a spring 53 sunk into a hole 54 in the body ofthe platen, the spring being held in alignment with the hole by means of a stud 55 fast to the clamping member. In order to release the grip ofsaid clamping member, there is Aprovided arlinger-piece 56 forming an integral part thereof, the linger-piece being operated in a manner as shown in Figure Variations may be resorted to within thev scope of the invention, and portions of the improvements may be used without others.` Having thusY described my invention, I claim: f f

1. TheV combination with a typewriting machine having a card-holding/t'ramefarranged toreciprocatetangentially in front of a revolublymounted platen, and meansA for vibrating a ribbon in front ofthe types when the card-holding frame is in its lower position and for silencing theribbon when the trame is in upper position, of means on Iche sides of said frame effective for engaging thel bottom edge of a card in said frame for locating the card to receive ribbon typing upon the lowerfedge portion of the car-d.

The combination with a typewriting machine having` a card-holding frame arranged to reciprocate tangentially in front of revolubly mounted platen, and means tor vibrating a ribbon in front ot the types Vwhen the card-holding trame is in its lower position and for silencingtheribbon when the frame is in upper position, ofmeans for controlling the' position ofthe card in the frame, so that the card may be located to receive typingwith the aid of they ribbon upon the lower portion of the card, said last-mentioned means including a pair of stop-devices controlled by-handles conveniently placed above the card-holding frame.

3. The combination with a typewriting machine having a card-holding trame arranged to reciprocate tangentially in front of a revolubly, mounted platen, and means for vibrating a ribbon in front of the types when the card-holding frame isin its lower position and for silencing the ribbon when the frame is in upper position, of meansv for controlling thelpo'sition of the card in the frame, so'thatfthe card lmayfbe locatedto receive typing'with the aid of theribbon upong the lower portion yof the card, said last-mentioned means including stop-devices pivotally mounted upon the card-holding frame` whereby the card may be'arrested by its bottom edge, andmeans for positioning the stop-devices infeither effective or ineffective :position said last-mentioned meansr in i cluding a spring having a'detent at the end, said detent; cofoperlati-ng'rwith holes in the stop-devices:l Y 4; The combination vw"thr a typewriting machinefhaving. Aa card-holding ltrame' arranged to reciprocateYtangentially in front of a revolubly mounted platen, and means for vibratingjra rribbon in frontot the types when the card-holdingrframe isr in its lower position and fortsilencing the ribbon when theframe is in 'upperpositiomof means for controlling the position of the card in the frame, so that the card may be located to re-V ceive typing with the aid of the ribbon upon the lower portion of the card, said last-'mentioned means including stop-devices pivotallly mounted upon ,the card-holding frame whereby the card. may be arrested by its bottom edge, means for vpositioning thestopdevices in-either effective or ineffective position,and means for controlling the position ot' the stop-devices, said, last-mentioned means includinghandles pivotally mounted upon-the frame, and means :for operatively connecting the ends of said handles with the stop-devices. Y v

5. A'The combination `with a typewriting machine havingy a card-holding trame arranged to reciprocateftangentiallyin front of a revolubly mounted. platen, and vmeans for vibrating a ribbon infront of the types whenthe Acard-holding frame is in its lower position and for ysilencing the ribbon when the frame is in upper position, of means for controlling the position of the card in the frame,so that the card may be located to receive typing with the aid 'of the ribbon upon the lower portion of the card, said last-men tioned means including stop-devices pivotally mounted upon the card-holding trame whereby the card may be arrested by its bottom edge, means for positioning the stopdevices in either eiiective or ineil'ective position, and means for controlling the position of the stop-devices, ,said .last-mentioned meansincluding handles piv'otally mounted upon the frame, and means for operatively connecting the ends of said handles with the stop-devices, said last-mentioned means lincluding studs fastl to the. stop-devices, said studs co-operating with slots in the handles.

V6. The combination with ar typewrit-ing machine having a revoluble platen and a card-holding trame arranged tov reciprocate infront thereof,y said frame including a rear platehavinga. cut-away portion at the Center ot' substantially the same width asl the platen, a -recess cut into said frame for receiving the side edgesoi' a card, a re-cess at the bottom of the trame for receiving the bottomv edge of the card, a vpair of plates secured to the sides of said trame to hold the edges of the card in said recess, and means tor trictionally holding the card in the cardfholdingdrame., said means including a pressurey iinger on each of said plates, eachltinger 'forming an integral part of said plates, and being bent inwardly to bear upon the ,edges of the card, and bent forwardly at the top thereof to form a throat for readily inserting the card.

7. The combination with a typeivriting machine having a. revoluble -platen and a card-holding frame arranged to reciprocate in front thereof, said frame 'including` a rear plate having a cut-away portion at the center of substantially the same Width as the platen, a recess cut into said frame tor receiving the side edges ot a card, a recess at the bottom of the Atrame tor receiving the bottom edge of the card, means for locating the card in the card-holding frame, so that the bottom edge ot' the card Will be arrested a considerable distance from the recess at the bottom ot' the card-holding frame, said means including stop-devices, pivotally mounted on said frame at the sides thereof, and means for controlling the position ot said stopfdevices to render them either eil'ective or ineffective..

8. mie combination with a typewriting ma chine having a revoluble platen and a cardholding trame arranged. to reciprocate in front thereof, said frame including a rear plate having a cut-away portion at the center oi' substantially the same Width as the platen, a recess cut ,into said frame for receiving the side edges of'a card, a` recess at the bottom ofthe Jtrarne for receiving the bottom edge of the card, means for locating i the card in the card-holding frame, so that the bottom edge ot the card will be arrested a considerable distance from the recess at the bottom ot' the card-holding trame, said means including stop-devices, pivotally mounted on said frame at the sides thereof, and means for controlling the position of said stop-devices torender them either eiective or ineffective, said last-mentioned means including a pair ot' handles pivotally mounted on said frame and means for operatively connecting said handles to said stop-devices. y

9. The combination with a typeWi-iting machine having a revoluble platen and a card-holding frame arranged to reciprocate in front thereof, said frame including a rear plate having a cut-away portion at the center of substantially the same Width as the platen, a recess cut into said frame forreceiving the sideedges ot'a card, a recess at the bottom of theftrame l:tor receiving the bottom edge ofthe card, a pair otl plates secured to the sides of said frame ,to hold the edges ofthe card in said recess, means tor locating th-e card in the card-holding trame to arrest it a considerable distance from the bottom recess in said trame, said meansV including stop-,devices pivotally mounted on the sides of said'trame, a -recess in said frame for housing'said stop-devices, and means for controllingthe position of said stop-devices, said last-mentioned means including tingen pieces pivotally mounted on said pair Y oi plates and means lio-r o1 eratively connecting said finger-pieces to said stop-devices.

'l0/The combination with a typewriting machine having a revoluble platen and a card-holding frame arranged to reciprocate in front ther-eelt', said Aframe including a, rear plate having a cut-awayportion. at the center of substantially the same Widthfas the platen, a recess cut into said trame for receiving the side edgesof a card, a recess at the bottom ot' the frame for receiving the bottom edge of the card, a pair of plates secured to the sides of said trame to hold the edges'o'tthe vcard in said recess, means tor locating theV card in the cardholding -fr-anie to arrest it a considerable distance from the bottom r-ecessinsaid frame, said means in cluding stop-devices .pivotally mounted on the sides ot said trame, a recess in said trame for housing said stop-devices, and meansy for controlling the position ot said stop-devices, said last-mentioned means including finger'- pieces pivotally mounted on said pair ot plates and means for operatively connecting said finger-pieces to said stop-devices, said last-mentioned means including studs secured to the stop-devices and protruc'ing through slots in said pair of plates, said studs engaging With slots in the finger-pieces at the ends thereof. l

:.ll. Thecombination with a typewriring machine having a revoluble platen and a card-holding yframe arranged to reciprocate infront thereof, said frame including a rear plater having a cut-awayvportion at the center of substantially the saine Width as the platen, a recess cut into said frame liorreceiving the side edges ot a card, a recess at the bottoni of their-ame for receiving the bottom edgev of the card, a pair o'li plates secured to lthe sides of said -frame to hold the edges ot the card in said recess, means for locating the card in the card-holding frame to arrest it a considerable distance from the bottom recess in said trame, said means including stop-devices pivotally mounted on the sides of said trame, a recess in said 'frame for housing said stop-devices, means -for controlling the position of said stop-devices, said last-mentioned means including finger-pieces pivotally mounted on said pair of plates and llU lli

means for operatively connecting said fingerpieces to said stop-devices, Aand means for frictionally holding the stop-devices in either effective or ineffective position, said lastmentioned means including spring-strips forming an integral `part of said pair o plates, said strips having detents at the ends and the detents co-operating With holes in the stop-devices. Y

12. A platen for a stencilcard-typewriting machine, having a celluloid strip, covering aportion of the periphery of said platen, and means for holding said strip against displacement, said means including a slot in said platen extending substantially the full width thereof, said slot being designed to receive a bent edge of said strip, a second slot for receiving the other edge of the strip and means for locking one of the edges in one ofthe slots, the other edge being bent inwardly in a manner to prevent its being disengaged Without first releasing the loc-l;- ing means.

13. A platen for a stencil-card-typevvriting machine, having ya celluloid strip, ycovering a portion of the periphery of said platen, and means for holding said strip against displacement, said means including'a slot in said platen extending substantially the full width thereof, said slot being designed to receive a bent edge of said strip, a second slot for receiving the other edge of the strip and means for locking one of the edges in one of the slots, the other edge being bent inwardly in a manner to prevent its being disengaged Without first releasing the locking means, said last-mentioned means including a bail-piece pivotallyA mounted in end plates of the platen, said bail-piece having a clamping edge effective to grip the strip against one side of the slot, means for resiliently holding the bail-piece in its effective position, and means for releasing the grip of the clamping piece. Y

14. A platen for a stencil-card-typevvriting machine, having a celluloid strip, covering a portion of the periphery of said platen,

and means for holding said stripV against disl placement, said means including a slot inl said platen extending substantially the full Width thereof, said slot being. designed to receive a bent edge of said'strip, a second 'of said celluloid strip,

`of said celluloid strip,

slot for receiving the other edge of the strip and means for locking one of the edges in one of the slots, the other edge being bent inwardly in a manner to prevent its being disengaged Without first releasing the locking means, said last-mentioned means including a bail-piece pivotally mounted in end plates of the platen, said bail-piece having a clamping edge effective to grip the strip against one side of the slot, means for resiliently holding the bail-piece in its eective position, and means for releasing the grip of the clamping piece, said last tWO mentioned means including a. spring sunk into a hole in the platen, said spring being effective to rock the bail-piece, and a fingerpiece, adjacent the spring, effective to compress the spring out of engagement with the strip.

15. A platen for a stencil-card-typewriting machine, having a celluloid strip, covering a portion of the periphery of said platen, and means for holding said strip against displacement, said means including a pair of slots in theplaten extending substantially the full length thereof, said slots being oblique to the periphery of the platen and being designed to receive inwardly-bent edges and clamping means in one of the slots to resiliently hold one edge of the celluloid strip against one of the slot.

16. A platen for a stencil-card-typeivriting maehine,`having a celluloid strip, covering a portion of the periphery of said platen, and means for holding said strip against displacement, said means including a pair of slots in the platen extending substantially the full length thereof, said slots being oblique to the periphery of the platen and being designed to receive inwardly-bent edges and clamping means in one of the slots to resiliently hold one edge of the celluloid strip against oneside of the slot, said last-mentioned means including a bail-piece pivotally mounted at the ends of the platen, said bail-piece having a clamping edge, a spring to rock the bailpiece so as to grip the strip, land means for manually releasing the grip of said bailpiece.

ALFRED Gr. F.- KUROWSKI.

and to'rock the bail-piece side 

